I probably got this Assenmacher soldering clamp a year ago but this is the first time I put it to use. Better than any other method I can think of to join two wires together. Using home electrical twist connectors is ghetto. Crimped butt connectors are too bulky. Forming the ends into a hook and then soldering is awkward. Twisting them together and soldering leaves a bulky bulge. With this method, after you put on some heat shrink tubing, the joint is hardly thicker than the original wires.